Don't be bashful! If you want comments, give comments. You don't need to be an expert photographer to express your opinion about the work of others. You don't need to go into great depth. A simple remark about cropping, composition, color, subject matter, etc. can be of just as much help to a budding photographer as an in-depth critique.
We all have favorites — a favorite color, favorite camera or lens, and maybe you have a favorite musician and song. If you hadn’t guessed yet, this assignment is all about favorites. Think about your favorite song and your favorite color. The title of your favorite song is the title of the photo in the assignment. Use your favorite camera and your favorite macro lens arrangement, listen to your favorite song by your favorite artist, and take a macro photo that somehow illustrates the song. Make sure your favorite color is contained within the photo!